Analog Devices EE-139 Interfacing ADSP-2191 to AD7476 via SPI Port

this note describes how to set-up an SPI interface between the ASDP-2191 and an A/D converter (AD7476) in both hardware and software


Analog Devices EE-139 Interfacing ADSP-2191 to AD7476 via SPI Port - cover page
Brand
Analog Devices
Category
microcontrollers
Document type
Application Note
Language
English
Pages
12
File format
PDF
File size
271 KB
Published
03 August, 2012
Updated
30 September, 2023
MD5 checksum
4A68CB21BF6948A729D91C8622E0578C

About this manual

This document provides technical guidance on establishing a Serial Peripheral Interface (SPI) connection between the Analog Devices ADSP-2191 digital signal processor and the AD7476 analog-to-digital converter. It details the hardware configuration, including pin connections and voltage level considerations for interfacing the two devices.

The guide also covers the software implementation required to control the SPI port on the ADSP-2191. It explains how to configure system registers, set interrupt priorities, and write assembly or C code to manage data transfers between the master DSP and the slave ADC.

What's inside

  • Introduction
  • Hardware Interface
  • Software Description
  • System Configuration Register
  • SPI Control Register
  • Interrupt Handler
  • C Code Implementation
  • Results

Frequently asked questions

What is the purpose of this application note?

The document describes how to set up an SPI interface between the ADSP-2191 and an A/D converter (AD7476) in both hardware and software.

What is the maximum power supply voltage for the AD7476?

The part operates from a single power supply up to 5.25V.

What is the output voltage of the reference device used with the AD7476?

The output from the reference is a steady voltage (4.096V).

Download PDF (271 KB)

More Analog Devices Manuals


View all Analog Devices manuals →